Yarn package core structure



April 26, 196s A. E. WINSLOW 3,248,065

YARN PACKAGE CORE STRUCTURE Filed July 18, 1963 4 1. 34 @Mrs V 3,248,065 YARN PACKAGE CGRE STRUCTURE Albert E. Winslow, Greenville, S.C., assignor to Winslow Incorporated, a corporation of South Carolina Filed July` 18, 1963, Ser. No. 295,913 4 Claims. (Cl. 242-4621) This invention relates in general to core structures of the type used by the textile industry for supporting yarn packages of various sorts, and more specifically to a core structureof this type in which a barrel member is fitted at each end for spindle mounting in a particularly simple and effective manner.

While the core structure of the present invention is generally applicable for embodiment in a variety of spool and bobbin forms, it may be representatively adapted to excellent advantage in forming bottom drive roving bobbins and such an embodiment has been selected for convenient detailed description of the invention in connection with the accompanying drawings, in which:

FIG. 1 is a side elevation of a bottom drive roving bobbin having top and bottom portions of the barrel member broken away and sectioned to show thespindle mounting fittings provided according to the present invention;

FIG. 2 is an enlarged top plan view of the PIG.1 bobbin structure;

FIG. 3 is a corresponding bottom plan view; and

FIG. 4 is a further, broken length, side elevation rotated 90 as indicated by the line 4 4 in FIG. 1.

In the illustrated roving bobbin embodiment, the reference numeral designates a tubular bobbin barrel, which is seen to be uniformly cylindrical throughout its length and to have diametrically opposite apertures 10 extending -through the wall thereof adjacent each end for receiving respective key lug portions 12 and 14 of upper and lower spindle mounting members 16 and 18.

Because the roving bobbin illustrated is intended for bottom driving, the upper spindle mounting member 16 has a concentric central sleeve portion 20 formed therein for locating disposition over the tip of a spindle (not shown). cularly spaced relation from the sleeve portion 20 to join it with a cylindrical body portion 24 fitting the inner diameter of the barrel member 10; while a top end portion 26 surrounds the central sleeve portion 20, integrally with the radial webs 22, and extends outwardly beyond the body portion 24 to form anging thereon overlying the adjacent end of the barrel member 10 and held in abutting relation thereat by disposition of the previously mentioned key lug portions 12 in the adjacent barrel apertures 10.

As seen in FIGS. 1 and 4, the key lug portions 12 are formed adjacent the lower end of the'cylindrical body portion 24 remotely with respect to the top end portion 26 that forms the anging'thereon, and the body portion 24 is slotted from its remote lower end toward the top portion 26 at each side of the key lug portions 12 so that each of them is arranged adjacent the free end of a supporting arm portion 28. By forming the spindle mounting member 16 of a plastic material such as nylon, the supporting arm portions 28 may be rendered suciently tlexibleto allow initial inward deflection of the key lug portions 12 during insertion of the body portion 24 at the top end of the barrel member 10 until the adjacent barrel apertures 10' are reached to receive the key lugs 12 and secure the spindle mounting member 16 in place.

Radial web portions 22 extend outwardly in cir UnitedStates Patent O wound paper tube serves to excellent advantage as a barrel member 10, but plastic or aluminum tubing, for example,

might be used instead if desired. A particular advantage of a paper tube barrel member 10 is that the apertures 10 may be formed therein readily to receive the key lugs 12 with a press-like t that will deform suficiently for an intimate and secure reception.

The lower spindle mounting member 18 is arranged comparably to the upper member 16 with the necessary modification to suit it for driving engagement with a spindle whorl (not shown). Thus, this lower member 18 has a cylindrical body portion 30 fitting the inner diameter of the barrel member 10 at its lower end and a bulkier outer Hanging 32 thereon extending in overlying relation at this lower end and sutliciently -beyond to provide for bottom face notching,as at 34, for engaging a spindle whorl driving lug or lugs. The bottom face notching 34 4is formed in a circularly spaced series that allows the roving bobbin to engage a whorl lug at a considerable selection ofV rotated positions on a spindle, which helpfully facilitates the removal of slack after piecing-up during use of the bobbin.

The key lug portions 14 of this lower spindle mounting member 18 are again arranged at the free end of supporting arm portions 36 slotted in the cylindrical body portion 30 to dispose the key lugs 14 remoately with respect to the flanging 30 for engagement in the adjacent barrel apertures 10' to secure the member 18 in place with its flanging 30 abutting the lower barrel end.

The same basic arrangement is readily modified to form a spool structure simply by enlarging the diametric size of the lower end anging 30, or by forming the top end portion 26 of the upper spindle mounting member 16 so that it extends as a spool flange, in addition, of course, to providing for whatever different spindle itting arrangement might be needed for a particular spool structure.

This invention has been described in detail above for purposes of illustration only and is not intended to be limited -by this description or otherwise except as defined by the appended claims. i

I claim:

1. A yarn package core structure comprising a tubular barrel member and spindle mounting members fitted at each end thereof, said spindle mounting members being characterized by :a spindle engaging portion and an integral cylindrical body portion fitting the inner diameter of said barrel member and having key lugs formed at the outer surface thereof and disposed in complementary apertures extending through the wall of said barrel mem ber, said cylindrical body portion being sufficiently ilexible to permit said key lugs fto be selectively disposed in and withdrawn from said apertures.

2. A yarn package core structure as defined in claim 1 and further characterized in that said spindle mounting members have the cylindrical body portions thereof outvwardIy anged at one end for overlying the adjacent end of said barrel member, and in that said barrel member apertures and said key lugs are relatively located for securing said outward Hanging in abutting relation at the respective barrel member ends.

3. A yarn package core structure as dened in claim 2 and further characterized in that said key lugs are formed :adjacent the ends of said cylindrical body portions remote from said loutward flanging, and in that said body portionsl are slotted from said remote ends toward said outward anging at each side of said key lugs to provide for disposition of said lugs in said barrel member apertures.

4. A yarn package core structure as defined in claim 3 Patented Apr. 26, l1966 and, further characterized in `that Vthe A spindle engaging References Cited by the Examiner portion of the spindle mounting member at one end of UNITED STATES PATENTS said barrel member includes a rconcentric central sleeve Y v portion formed therein in spaced relation to said cylin- 1975363 10/1934 Hombuckle ""T" 242-46217 drical body portion for disposition over the tip of a 5 2359604 11/1944 A twood 242-"118'31'X- 2 622 825 12/1952 Faris 242-118.61 spindle, and the spindle engaging portion of the spindle Y mounting member at the other end of said barrel member FOREIGN PATENTS is formed `by said outward flanging thereof being notched 228,737 1/1959 Australia, for driving engagementat a vspindle whorl, so that said 301,877 V6/1929 Great Britain.

core-structure is adapated for service ,as a bottom drive 10 f roving robbin, MERVIN STEIN, Primary Examiner. 

1. A YARN PACKAGE CORE STRUCTURE, COMPRISING A TUBULAR BARREL MEMBER AND SPINDLE MOUNTING MEMBERS FITTED AT EACH END THEREOF, SAD SPINDLE MOUNTING MEMBERS BEING CHARACTERIZED BY A SPINDLE ENGAGING PORTION AND AN INTEGRAL CYLINDRICAL BODY PORTION FITTING THE INNER DIAMETER OF SAID BARREL MEMBER AND HAVING KEYS LUGS FORMED AT THE OUTER SURFACE THEREOF AND DISPOSED IN COMPLEMENTARY APERTURES EXTENDING THROUGH THE WALL OF SAID BARREL MEMBER, SAID CYLINDRICAL BODY PORTION BEING SUFFICIENTLY FLEXBLE TO PERMIT SAID KEY LUGS TO BE SELECTIVELY DISPOSED IN AND WITHDRAWN FROM SAID APERTURES. 